Arizona gunman Jared Loughner

Jared Loughner, 22, plead guilty of a shooting attack that killed six people and wounded more than a dozen others at a campaign event hosted by Arizona congresswoman Gabrielle Giffords, who was hospitalized after a bullet passed through the left side of her brain. Loughner is set to be sentenced on Nov. 8, 2012, on 19 federal charges under an agreement that guarantees he will spend the rest of his life in prison without the possibility of parole.